In the foliar fertilizer treatment, T2= Zn+Mg+S gave the highest fresh stem weight and all so gave higher root starch content, T5)= Mg+S tended to give higher root number per plant and T3= Zn+Mg tended to give higher fresh root yield.
In the cultivar and foliar fertilizer treatment, HB 60 with Zn+Mg treatment gave the highest fresh
root yield, while HB 80 with Zn+Mg+S treatment gave the highest root starch content.